Refrigerator



FIG. 1 is a front perspective view of a refrigerator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another front perspective view thereof shown in an open position.

The broken lines in the figures depict portions of the refrigerator which form no part of the claimed design. 

CLAIM We claim the ornamental design for a refrigerator, as shown and described. 